A month after back-to-back death of elephants in the Nandankanan Zoological Park (NZP), a white tiger died on Tuesday.The tiger Subhranshu was suffering from blood protozoan disease and under intensive care and treatment of the zoo veterinarians for the last one month.“Preliminary postmortem findings reveal that it is due to haemorrhagic enteritis, hepatitis, jaundice and ascitis suspected for tick-borne protozoan disease. Samples (necropsy) were collected from the body parts for molecular confirmation and histopathological examination,” said NZP authorities.“Samples of some body parts collected from the tiger will be sent to the Indian Veterinary Research Institute, Bareily and Chennai for molecular confirmation of disease. Simultaneously, it will be processed at the Centre for wildlife health, OUAT Bhubaneswar,” said the NZP.Authorities said they were exploring the possibility of vaccinating canines and felines against blood protozoan diseases, using vaccines available in India or abroad.To eliminate ticks, cleaning of surroundings of carnivore enclosures up to 10 ft from the boundary wall and spray of acaricide in the surrounding would be taken up and the ongoing anti-tick measures would be intensified. Parasitologists will be consulted for exploring alternative measures for tick elimination. The number of big cats has come down to 25.